The Marshalltown Adjustable Mason Line Stretcher ALS504 is designed for precision and durability in professional masonry work. Fully adjustable from 4 to 12 inches, it fits various project needs, providing optimal tension for mason’s line between key course blocks. Crafted from robust cast iron aluminum, this tool offers exceptional strength while maintaining lightweight handling for ease of use.

Its adjustable mechanism ensures consistent line tension, contributing to perfectly aligned blocks and enhanced structural accuracy. Ideal for experienced masons seeking reliable performance, this stretcher improves workflow efficiency and accuracy on any job site